Improvement in portable furnaces



E. H. LORD &. B. D'. EVANS.

Portabie Furnace.

No. 164,311 PatentedJune8,1875.

THE GRAPHIC COPNOTO -LITN.39 8:41 PARK PLACEJLY.

ELI H. LORD AND BARNABAS D. EVANS, OF PETERSBURG, VIRGINIA.

IMPROVEMENT IN PORTABLE FURNACES.

, Specification forming part of Letters Patent No. 164,312, dated June8, 1875; application filed May 19, 1875.

To all whom it may concern:

Be it known that we, E. H. LORD and B. D. EVANs, of Petersburg, in thecounty of Dinwiddie and State of Virginia, have invented certain new anduseful Improvements in Gombined Stoves, Furnaces, and Bakers; and we dohereby declare that the following is a full, clear, and exactdescription thereof, reference being had to the accompanying drawings,and to the letters of reference marked thereon, which forms part of thisspecification.

The nature of my invention consists in the construction and arrangementof a portable furnace or stove, as will be hereinafter more fully setforth.

In order to enable others skilled in the art to which our inventionappertains to make and use the same, we will now proceed to describe itsconstruction and operation, referring to the annexed drawings, in which-Figure 1 is a longitudinal vertical section, and Fig. 2 a transversevertical section, of our stove or furnace.

A represents the shell of our furnace or stove, having a fiat bottom, B,extended beyond the sides of the stove, as shown. The stove A is, bymeans of an inclined fire-back, 0, divided into the fire-chamber A andflue A as shown in Fig. 1. The fire-back O is placed in guides to a inthe sides of the furnace, and is movable up and down. In the firechamberA is the grate D, and below said grate, in the front of the furnace, isa draftopening, I), closed by means of a slide or damper, d. In theupper edge of the fire-back O is an opening, f, and in the bottom B isan opening, e, communicating with the flue A At the top of the flue A inthe rear of the stove, is an extension, A having on top an ordinarystove-pipe collar, h, with a cap, h, for closely covering the same. E isthe top plate of the stove, formed with one or more ordinarystove-holes.

This stove may be used on top of an ordinary cooking-stove, when theopening 6 in the bottom of the flue A should be placed over one or moreof the openings in the cookingstove. The fire is then built on the grateD, and the smoke, &c., passes over the top of the fire-back 0, down theflue A into the cooking-stove, and from thence to the chimney.

In this case the cap h should be placed over the collar h.

If strong draft is desired, the fire-back 0 may be raised to allow thesmoke to pass directly from the fire, below the fire-back, and out, asbefore. The fire-back, being movable, can easily be taken out whenburned out, and a new one put in.

The stove may be used by itself, when the opening 6 in the bottom willbe closed, the cap h removed, and the collar I1. connected with thestove-pipe.

In connection with this stove I use an oven, consisting simply of anopen-bottomed case, G, provided with an interior shelf, H, and coveringthe entire top surface of the stove. The shelf H is provided withperforations 4; near the edges, and on its under side it has a convexsurface, m, against which the heat strikes, and is deflected in alldirections to the sides of the oven. In the front of the oven is a door,I, and at the back is a damper, p, for regulating the heat therein.

This stove and oven may be manufactured very cheaply, and may be usedeverywhere and under almost any circumstances.

Having thus fully described our invention, what we claim as new, anddesire to secure by Letters Patent, is-

1. The stove or furnace A, provided with the movable fire-back (J,forming a partition to divide it into the fire-chamber A and flue Asubstantially as and for the purposes herei in set forth.

2. The combination of the stove A, movable fire-back O, grate D,extension A", and collar h with cap it and the openings b e,substantially as and for the purposes herein set forth.

3. The combination, with a portable stove or furnace, A, of the oven Gr,shelf H, having perforations i and convex surface m, the door I, anddamper 19, substantially as and for the purposes herein set forth.

In testimony that we claim the foregoing as our own we affix oursignatures in presence of two witnesses.

ELI H. LORD. BARNABAS D. EVANS.

Witnesses:

J. G. GRIswoLn, R0. GILLIAM, Jr.

